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  <title>使用 RPROP 算法训练时，设置下降因子</title>
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  <div id="layout-content"><div id="function.fann-set-rprop-decrease-factor" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">fann_set_rprop_decrease_factor</h1>
  <p class="verinfo">(PECL fann &gt;= 1.0.0)</p><p class="refpurpose"><span class="refname">fann_set_rprop_decrease_factor</span> &mdash; <span class="dc-title">使用 RPROP 算法训练时，设置下降因子</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-function.fann-set-rprop-decrease-factor-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="methodname"><strong>fann_set_rprop_decrease_factor</strong></span>
    ( <span class="methodparam"><span class="type">resource</span> <code class="parameter">$ann</code></span>
   , <span class="methodparam"><span class="type">float</span> <code class="parameter">$rprop_decrease_factor</code></span>
   ) : <span class="type">bool</span></div>

  <p class="para rdfs-comment">
   使用 RPROP 算法训练时，设置下降因子。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-function.fann-set-rprop-decrease-factor-parameters">
  <h3 class="title">参数</h3>
  <dl>

   
    <dt>
<code class="parameter">ann</code></dt>

    <dd>

     <p class="para">Neural network <span class="type"><a href="language.types.resource.html" class="type resource">resource</a></span>.</p>
    </dd>

   
   
    <dt>
<code class="parameter">rprop_decrease_factor</code></dt>

    <dd>

     <p class="para">
      下降因子。
     </p>
    </dd>

   
  </dl>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.fann-set-rprop-decrease-factor-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">Returns <strong><code>TRUE</code></strong> on success, or <strong><code>FALSE</code></strong> otherwise.</p>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.fann-set-rprop-decrease-factor-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="fann_get_rprop_decrease_factor.html" class="function" rel="rdfs-seeAlso">fann_get_rprop_decrease_factor()</a> - 返回 RPROP 训练期间的衰减系数</span></li>
   </ul>
  </p>
 </div>



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